The CentriPipe trenchless rehabilitation system from AP/M Permaform provides structural relining using a bidirectional spincaster and PL-8000 specialty mortar. The precisely placed and compacted concrete liner is applied at the best design thickness for the diameter and conditions. It contains rust inhibitors to prevent corrosion of the old metal and is resistant to abrasion. This process provides waterproofing, sealing, structural reinforcement and corrosion protection, maximizing the pipe interior for capacity and flows while providing a fully structural “pipe within a pipe.” 800/662-6465; www.permaform.net.